Joint-binder.



m GLARDON. JOINT BINDER APPLICATION FILED MAY 24, 1907.

Fa 5. F694 #2616556; I fizz/670602 THE NORRIS I ETE PATENTED FEB. 11,1908.

EDOUARD CHARLES GLARDON, OF HAMBURG, GERMANY.

JOINT-B INDER.

Specification of Letters Patent.-

Patented Feb. 11, 1908.

Application filed May 24. 1907. Serial No. 375.530

To all whom it may concern:

Be it known that I, EDOUARD CHARLES GLARDON, a citizen of the SwissRepublic, and resident of No. 27 Grosse Bleichen, Hamburg, in the Empireof Germany, have invented a new or Improved J oint-Binder, of which thefollowing is a specification.

The present invention relates to an improved clamp for binding togetherwooden planks, boards and the like, the special sphere of application ofthe invention being the safeguarding of wooden boxes or chests againstfraudulent opening in their transport or storing.

Special objects of the invention are to render more eflicient,serviceable and durable in operation devices of the kind referred to.

With these ends in view the invention consists in the novel combinationarrangement and adaptation of parts, all as more fully hereinafterexplained, shown in the accompanying drawings and then specifically setout in the appended claims.

In the annexed drawings Figure 1 is a pers ective elevation of theimproved binding 0 amp in its application for connecting the lid withthe body of a box, Fig. 2 is a front elevation of Fig. 1 showing theimproved binding clamp edgewise, Fig. 3 represents an elevation of theimproved binding clamp seen from the left of Fig. 2, Fig. 4 is a topelevation of Fig. 3,

The invention relates to an improvement in that well known class ofbinding clamps, which are employed in connecting and fasten.-

ing together wooden planks and boards,

more especially in binding and securing the lids in regard to the boxes,so as to safeguard the contents of the latter against pilfering andbeing tampered with. Binding clamps of this kind generally consist oftwo perforated shanks connected. together and integral with a web orbridge. These shanks are to be driven into the two parts to be boundtogether, whereupon a nail is inserted vertically in regard to theshanks through the holes in the latter. By employing barbed nails and bydriving each nail in until its head is countersunk, the connectionbetween the two 7 arts can generally not be disturbed without leavingvisible traces in the surfaces of the wooden parts. It is howeverpossible to drive a suitable chisel along the shanksinserted in the woodand in this way to sever the nail closely above the upper and closelybeneath the lower shank. The clamp can terrupted and the I then beextracted with facility, enabling the connection between the two partsto be inlid to be lifted off. After driving home again the clamp theoriginal appearance of the connection between the two parts can bereproduced without n0- ticeable traces or external damages.

According to this invention the clamp is constructed in such a manner,that the shanks a, a do not connect directly with the web or bridge I),as is customary with the ordinary clamps but rim'portions c, c areprovided by the web or bridge I) which extend some distance beyond theshanks a, a. These rim portions 0, c are referably produced by bendingand dou ling back the metal sheet blank of suitable length employed formanufacturing the clamp, as shown in the various figures.

When binding clamps according to this invention of the nature justbefore described are used, the insertion of a chisel at the ex.

ternal edges of the rim 0, c for the purpose of cutting or severing thenail cl produces a clearly visible indentation by the cut of the chisel,without affording the means of separating the two parts 0, f connectedtogether. The chisel, which would attack the nail d at a distance fromthe shanks a, a corresponding to the length of the rims 0, generallybends the nail inside the wood without severing it. Even assuming thenail will be severed, the middle portion of the nail, divided off by thecutting action of the chisel, would project with both extremitiessufficiently beyond the shanks a, a to prevent the clamp beingextracted.

Inserting the chisel obliquely i. e. directed from the edges of the rimsc of the web or rib b towards the point of intersection of the shanks aand of the nail (1, would either split and chip the wood or at any rateprevent the nail being cut close enough at the surface of the shanks, toenable the clamp to be withdrawn.

The Web or bridge of the clamp is suitably curved or otherwise figuredat its two marginal portions as indicated by the refer ence letter g toprevent the clamp and the wood portions beneath same being excavated bya mortise chisel or the like.

I do not desire to be understood as limiting myself to the detailconstruction and. arrangement of parts as herein shown and described, asit is manifest that variations and modifications therein may be resortedto, in

the adaptation of my invention to varying conditions of use, withoutdeparting from the spirit and scope of my invention and improvements. Itherefore reserve the right to all such variation and modification asproperly falls within the scope of my invention and the terms of thefollowing claims.

Having thus described my invention, I claim and desire to secure byLetters Patent:

1. In an improved binding clamp of the nature set forth consisting of apair of perforated shanks a, a connected together by a Web or bridge I),the rim 0 arranged at each end of the connecting web, said rims 0lengthening the Web I) and extending at both extremities of the latterbeyond the shanks a, substantially as described and shown and for thepurposes set forth.

2. In an improved binding clamp of the nature set forth consisting of apair of perforated shanks a, a connected together by aweb or bridge I),the rim 0 arranged at each end of the connecting web, said rims a beingproduced by bending and doubling back the metal blanks of the clamp atthe web portion and by subsequently bending off the shanks a at adistance from the external edges of the rim 0, substantially asdescribed and shown and for the urposes set forth.

In witness whereof I have hereunto signed my name this 10th day of May1907, in the presence of two subscribing witnesses.

EDOUARD CHARLES GLARDON.

WVitnesses:

ERNEST H. L. MUMMENHOFF, IDA CHRIST. HAFERMANN.

